Next generation in-situ analysis for perovskite photovoltaic development

钙钛矿光伏开发的下一代原位分析

• 批准号: EP/V010913/1
• 负责人: Stoichko Dimitrov
• 金额: $ 57.47万
• 依托单位: Queen Mary University of London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV010913%2F1
• 关键词: Next; generation; situ; analysis; perovskite

In 2019, the UK government set a target to achieve a zero net carbon emission economy by 2050 in response to the need for sustainable supply and use of energy. One way to support this target is to develop more efficient, cheaper and accessible photovoltaic (PV) panels, which is already a topic of active research in the UK and worldwide. From all types of PV technologies, scientists are particularly interested in the so-called perovskite PV, as they are unique in the way they generate electricity extremely efficiently and how they can be printed on metal, glass or plastic surfaces cheaply. The drawback is that they are not ready for wide commercial exploitation due to challenges with their stability, toxicity and industrial scale-up. Scientists use many analytical techniques to understand how different materials and processes affect the properties of perovskite PV, but most of the time their analysis is slow and produces limited information. This is because effective analysis requires specialist equipment and expertise often unavailable to industrial and academic development teams. Meanwhile, there have been significant discoveries in using optical spectroscopy techniques to study perovskites and today they can be further developed to quickly analyse materials directly on the production printers. Therefore, the aim of this project is to achieve exactly this and build the first experimental technique that can analyse structure and performance of printed perovskite PV panels directly on the printers making them. This will allow more effective analysis of processing conditions and new materials and as a result faster decision making by scientists and engineers. The methodology of the project will take a full advantage of the recent progress in the spectroscopy of perovskites and the expertise of the principle investigator of the project in the spectroscopy of printed PV. The first stage of the project will be the construction of a new instrument using portable spectrometers and powerful lasers to detect the reflection, scattering and emission of light from perovskite materials. In the second stage, efforts will be focused on the development of the protocols and theoretical models that will allow the prediction of performance and the monitoring of the structural evolution of perovskite materials during printing, without the need for full scale PV device fabrication. These steps will be carried out by a postdoctoral researcher and a PhD student, who will also validate the new methods using established analytical techniques. The final stage of the project will be the application of the new technique in the first of a kind analysis of state-of-the-art perovskite devices, which will produce unique new insights into the properties of perovskite materials. The project will be carried out at Queen Mary University of London for 36 months, where the project team will have access to world class facilities and equipment to complete it successfully. The principle investigator is an internationally leading expert in the spectroscopic analysis of printed photovoltaics with experience and strong links with the UK and international PV research community to allow him to lead the project to completion. The project will include collaborations with two world leading PV development teams, one from industry and one from academia, and a world leading researcher in theoretical modelling of perovskite panels. The collaborations will bring in complementary expertise to the project and guidance for instrument development as potential beneficiaries of the new technique. The expected outcomes of the project include new knowledge for strong scientific publications and patents with the potential for future applications in and a significant impact on the PV and analytical science industries. In the long term, the new analytical technique can be expanded into other electronic technologies due to its unique sensitivity and portability.

2019年，英国政府设定了一个目标，目的是到2050年，以响应可持续供应和能源的需求，达到零净碳排放经济。支持该目标的一种方法是开发更高效，更便宜且可访问的光伏（PV）面板，这已经是英国和全球积极研究的话题。从所有类型的PV技术中，科学家对所谓的Perovskite PV特别感兴趣，因为它们在极有效地发电的方式上是独一无二的，以及如何便宜地将其印刷在金属，玻璃或塑料表面上。缺点是，由于其稳定性，毒性和工业规模的挑战，他们还没有准备好进行广泛的商业剥削。科学家使用许多分析技术来了解不同的材料和过程如何影响钙钛矿PV的特性，但是大多数情况下，它们的分析速度很慢，并且会产生有限的信息。这是因为有效的分析需要工业和学术发展团队通常无法获得的专业设备和专业知识。同时，在使用光谱技术研究钙钛矿方面已经有很大的发现，如今可以进一步开发它们，以直接在生产打印机上直接分析材料。因此，该项目的目的是确切实现这一目标，并建立第一种可以直接在打印机上分析印刷钙钛矿PV面板的结构和性能的实验技术。这将允许对处理条件和新材料进行更有效的分析，从而更快地由科学家和工程师做出决策。该项目的方法将充分利用钙钛矿光谱的最新进展以及该项目的主要研究者在印刷PV光谱中的专业知识。该项目的第一阶段将是使用便携式光谱仪和强大的激光器来构建新仪器，以检测钙钛矿材料的反射，散射和发射。在第二阶段，努力将集中在制定方案和理论模型上，这些模型将允许在印刷过程中预测性能和监测钙钛矿材料的结构演化，而无需进行全尺度的PV设备制造。这些步骤将由博士后研究员和博士生进行，他们还将使用已建立的分析技术验证新方法。该项目的最后阶段将是对最先进的钙钛矿设备的第一个分析中新技术的应用，这将对钙钛矿材料的性质产生独特的新见解。该项目将在伦敦皇后大学进行36个月的时间，该项目团队将可以使用世界一流的设施和设备来成功完成它。主要研究者是对印刷光伏分析的国际领先专家，具有经验并与英国和国际光伏研究社区有着牢固的联系，使他能够领导该项目完成。该项目将包括与两个世界领先的PV开发团队的合作，一个来自行业，一个来自学术界，以及钙钛矿理论模型的全球领先研究员。这些合作将为项目的潜在受益者提供互补的专业知识和仪器开发指南。该项目的预期结果包括针对强大科学出版物的新知识和专利，并有可能在未来应用中进行应用以及对PV和分析科学行业的重大影响。从长远来看，由于其独特的灵敏度和可移植性，新的分析技术可以扩展到其他电子技术。

项目成果

Generating Long-Lived Triplet Excited States in Narrow Bandgap Conjugated Polymers.

• DOI: 10.1021/jacs.2c12008
• 发表时间: 2023-02-15
• 期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
• 影响因子: 15
• 作者: Marin-Beloqui, Jose M.;Congrave, Daniel G.;Toolan, Daniel T. W.;Montanaro, Stephanie;Guo, Junjun;Wright, Iain A.;Clarke, Tracey M.;Bronstein, Hugo;Dimitrov, Stoichko D.
• 通讯作者: Dimitrov, Stoichko D.

Triplet Generation Dynamics in Si- and Ge-Bridged Conjugated Copolymers

• DOI: 10.1021/acs.jpcc.1c09253
• 发表时间: 2022-01-05
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Hernandez, Federico J.;Fei, Zhuping;Dimitrov, Stoichko D.
• 通讯作者: Dimitrov, Stoichko D.

Single-Atom Iridium on Hematite Photoanodes for Solar Water Splitting: Catalyst or Spectator?

• DOI: 10.1021/jacs.2c09974
• 发表时间: 2023-01-25
• 期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
• 影响因子: 15
• 作者: Guo, Qian;Zhao, Qi;Crespo-Otero, Rachel;Di Tommaso, Devis;Tang, Junwang;Dimitrov, Stoichko D.;Titirici, Maria-Magdalena;Li, Xuanhua;Sobrido, Ana Belen Jorge
• 通讯作者: Sobrido, Ana Belen Jorge